flue gas desulfurization dauki
FGD, gajeriyar desulfurization mai hayaƙin hayaki, hanya ce da ta zama dole don tsaftace sulfur dioxide (SO2) daga hayaƙin masana'antar sarrafa man fetur. Ta hanyar FGD, ana goge iskar bututun hayaki tare da sorbent - yawanci farar ƙasa ko lemun tsami - wanda zai amsa da kama SO2. Tasirin shine sanya shi cikin samfuran da ba su da lahani kamar gypsum. Mahimman fasahohin fasaha na tsarin mai sarrafa kansa sun haɗa da hasumiya mai ɗaukar hoto, tsarin sarrafa slurry, da tsarin cire ruwa na gypsum A lokaci guda, wannan tsarin da za a iya cirewa an gina shi don saduwa da ƙaƙƙarfan buƙatun muhalli kuma ana iya shigar da shi akan tashoshin wutar lantarki da ake da su. Yawancin masana'antun wutar lantarki na kwal sun rungumi tsarin FGD, suna hana gurɓacewar iska da ma'aikatanta na lalata zamantakewa da muhalli.